The circulation of substances and the transformation of energy on earth occurs at the level of organization of living things.

The circulation of substances in nature occurs at the biospheric level. Some substances can be restored on their own, without the help or fate of living organisms. This is primarily the water cycle in nature. Water regenerates on its own thanks to physical laws. It evaporates, condenses and returns to the ground back. But the circulation of inorganic substances is tied to some living organisms. First of all, these are bacteria and fungi that destroy organic compounds.